Strongylocentrotus fragilis

Strongylocentrotus fragilis
Strongylocentrotus fragilis
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Camarodonta
Family: Strongylocentrotidae
Genus: Strongylocentrotus
Species: A. fragilis
Binomial name
Strongylocentrotus fragilis
(Jackson, 1912)

Strongylocentrotus fragilis is a species of sea urchin of the family Strongylocentrotidae.

Description and characteristics

This is a regular sea urchin, with a spherical test bearing the anus and top and mouth on the bottom. They are somewhat flettened, and of pale pinkish color with white spines. It is a deep-sea species, and they can occur in great number where food is abundant.

Strongylocentrotus fragilis (pink) with some Strongylocentrotus pallidus (white).

Habitat and range

This is an abyssal species, occurring at many hundred meters deep on the western coasts of the North America.[1]

Taxinomy

It was first scientifically described in 1912 by Jackson.[2]

This species is often referred as Allocentrotus fragilis, and its taxonomy is still under debate.[1]

References

  1. 1 2 Andreas Kroh & Andrew Smith. "Allocentrotus fragilis". Echinoid Directory (Natural History Museum).
  2. Kroh, A. (2010). Strongylocentrotus fragilis (Jackson, 1912). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species.


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